iRhythm Ownership | Who Owns iRhythm?
iRhythm Ownership Summary
iRhythm is owned by 24.24% institutional investors, 1.12% insiders, and 74.64% retail investors. Tudor investment corp et al is the largest institutional shareholder, holding 63.31% of IRTC shares. Sands Capital Global Growth Equity is the top mutual fund, with 4.68% of its assets in iRhythm shares.
IRTC Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | iRhythm | 24.24% | 1.12% | 74.64% |
| Sector | Healthcare Stocks | 35.56% | 12.08% | 52.36% |
| Industry | Medical Device Stocks | 36.89% | 11.20% | 51.91% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Tudor investment corp et al | 20.00M | 63.31% | $27.45M |
| Vanguard group | 3.31M | 10.29% | $587.42M |
| Blackrock funding, inc. /de | 2.74M | 8.57% | $323.55M |
| Blackrock | 2.50M | 8.03% | $269.35M |
| Rtw investments, lp | 1.67M | 5.21% | $196.92M |
| Millennium management | 1.61M | 5.02% | $189.78M |
| Artisan partners limited partnership | 1.45M | 4.53% | $171.24M |
| Fmr | 1.36M | 4.26% | $160.73M |
| Holocene advisors, lp | 1.25M | 3.90% | $147.37M |
| Ubs asset management americas | 1.05M | 3.27% | $123.62M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Ophir asset management pty | 335.81K | 4.62% | $39.63M |
| Braidwell lp | 610.19K | 2.40% | $72.01M |
| Rtw investments, lp | 1.67M | 1.96% | $196.92M |
| Kampmann melissa s. | 21.01K | 1.89% | $2.50M |
| Rock springs capital management lp | 261.75K | 1.82% | $30.89M |
| First light asset management | 168.12K | 1.78% | $19.84M |
| Healthinvest partners ab | 54.10K | 1.73% | $6.44M |
| Eventide asset management | 760.83K | 1.48% | $89.77M |
| Next century growth investors | 169.31K | 1.45% | $19.98M |
| Stephens investment management group | 693.44K | 0.88% | $82.48M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Tudor investment corp et al | 20.00M | 0.05% | 20.00M |
| Millennium management | 1.61M | 0.08% | 781.64K |
| Fmr | 1.36M | 0.01% | 733.15K |
| Holocene advisors, lp | 1.25M | 0.36% | 565.09K |
| Rtw investments, lp | 1.67M | 1.96% | 486.51K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Sands capital management | - | - | -1.70M |
| Capital research global investors | 509.59K | 0.01% | -675.16K |
| Price t rowe associates inc /md/ | 35.69K | 0.00% | -466.43K |
| Fiera capital | - | - | -381.64K |
| Champlain investment partners | - | - | -365.63K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Tudor investment corp et al | 20.00M | 0.05% | 20.00M | $27.45M |
| Vanguard fiduciary trust | 223.70K | 0.01% | 223.70K | $26.40M |
| Bamco inc /ny/ | 183.90K | 0.07% | 183.90K | $21.70M |
| Susquehanna portfolio strategies | 75.96K | 0.13% | 75.96K | $8.96M |
| Thrivent financial for lutherans | 75.16K | 0.02% | 75.16K | $8.87M |
Sold Out
| Holder | Change |
|---|---|
| Coppell advisory solutions | -1.00 |
| Dunhill financial | -1.00 |
| National bank of canada /fi/ | -1.00 |
| Wealthspire advisors | -1.00 |
| Ronald blue trust | -2.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Mar 31, 2026 | 137 | -59.94% | 7,757,583 | -77.95% | 24 | 0.20% | 61 | -59.87% | 40 | -67.74% |
| Dec 31, 2025 | 278 | -20.11% | 24,936,629 | -28.15% | 77 | 0.64% | 122 | -29.07% | 98 | -14.04% |
| Sep 30, 2025 | 333 | 5.38% | 54,680,163 | 54.50% | 169 | 1.35% | 164 | -2.38% | 112 | 19.15% |
| Jun 30, 2025 | 316 | 18.35% | 35,390,802 | -1.62% | 112 | 0.86% | 169 | 26.12% | 93 | 9.41% |
| Mar 31, 2025 | 8 | -96.69% | 1,629,968 | -95.25% | 5 | 0.04% | 4 | -96.43% | 4 | -95.35% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Sands Capital Global Growth Equity | 1.51M | 4.68% | -488.05K |
| Vanguard US Total Market Shares ETF | 1.01M | 3.21% | 68.62K |
| Canada Life US Small-Mid Cap Growth A | 1.00M | 3.19% | -41.02K |
| Vanguard Morn Total Stk Mkt Idx Investor | 1.03M | 3.12% | 156.00 |
| Vanguard Total Stock Mkt Idx Inv | 1.03M | 3.12% | 156.00 |
| iShares Russell 2000 ETF | 863.05K | 2.63% | 9.36K |
| Vanguard Small Cap Index | 741.45K | 2.26% | -509.00 |
| Capital Group New Economy Comp | 625.22K | 1.93% | - |
| American Funds New Economy A | 625.22K | 1.93% | - |
| Stephens SMID Select Growth | 488.69K | 1.49% | 88.98K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Aug 03, 2026 | Smith Mervin | EVP Strategic Business Ops | Sell | $75.35K |
| Aug 03, 2026 | Rodda Julianne | EVP, CHIEF PEOPLE OFFICER | Sell | $257.92K |
| Aug 03, 2026 | Patterson Chad | CHIEF COMM & PRODUCT OFFICER | Sell | $331.19K |
| Jul 02, 2026 | Turakhia Minang | CHIEF MED/SCI OFCR EVP ADVTECH | Sell | $177.46K |
| Jul 02, 2026 | Freeman Sean Clinton | EVP, Strategy & Corp Devt | Sell | $114.48K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q3 | - | 5 |
| 2026 Q2 | 1 | 6 |
| 2026 Q1 | - | 37 |
| 2025 Q4 | - | 10 |
| 2025 Q3 | - | 17 |
IRTC Ownership FAQ
Try Tickergate Pro Free
Customize Everything. 100% Flexibility. Fast and Easy to Use (No code or Excel Needed)
Customize your own personal stocks lists, views and charts
Choose from hundreds of fields, up to 15 years of history
Conduct deep comparison analysis
Discover trending investment themes
Find your next best investment
Research stocks using tools